HEADER TRANSFERASE/TRANSFERASE INHIBITOR 21-MAR-12 4E9U TITLE CRYSTAL STRUCTURE OF DEHYDROSQUALENE SYNTHASE (CRTM) FROM S. AUREUS TITLE 2 COMPLEXED WITH A THIOCYANATE INHIBITOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: DEHYDROSQUALENE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: 4,4'-DIAPOPHYTOENE SYNTHASE, DAP SYNTHASE, DIAPOPHYTOENE COMPND 5 SYNTHASE; COMPND 6 EC: 2.5.1.96; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS; SOURCE 3 ORGANISM_TAXID: 1280; SOURCE 4 GENE: CRTM; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21 KEYWDS PRENYL TRANSFERASE, THIOCYANATE INHIBITOR, TRANSFERASE-TRANSFERASE KEYWDS 2 INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR F.-Y.LIN,J.AXELSON,Y.-L.LIU,Y.ZHNAG,E.OLDFIELD REVDAT 4 28-FEB-24 4E9U 1 REMARK LINK REVDAT 3 30-MAY-12 4E9U 1 JRNL REVDAT 2 16-MAY-12 4E9U 1 JRNL REVDAT 1 25-APR-12 4E9U 0 JRNL AUTH F.Y.LIN,Y.L.LIU,K.LI,R.CAO,W.ZHU,J.AXELSON,R.PANG,E.OLDFIELD JRNL TITL HEAD-TO-HEAD PRENYL TRANFERASES: ANTI-INFECTIVE DRUG JRNL TITL 2 TARGETS. JRNL REF J.MED.CHEM. V. 55 4367 2012 JRNL REFN ISSN 0022-2623 JRNL PMID 22486710 JRNL DOI 10.1021/JM300208P REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.6.4_486) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 36.77 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 96.6 REMARK 3 NUMBER OF REFLECTIONS : 19540 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.191 REMARK 3 R VALUE (WORKING SET) : 0.189 REMARK 3 FREE R VALUE : 0.236 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.170 REMARK 3 FREE R VALUE TEST SET COUNT : 1010 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 36.7790 - 4.0204 1.00 2886 137 0.1848 0.2222 REMARK 3 2 4.0204 - 3.1917 1.00 2749 149 0.1726 0.2267 REMARK 3 3 3.1917 - 2.7884 0.99 2719 147 0.1978 0.2380 REMARK 3 4 2.7884 - 2.5335 0.97 2636 148 0.1953 0.2396 REMARK 3 5 2.5335 - 2.3519 0.96 2576 167 0.1977 0.2375 REMARK 3 6 2.3519 - 2.2133 0.94 2534 146 0.2045 0.2924 REMARK 3 7 2.2133 - 2.1000 0.90 2430 116 0.2179 0.2653 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 REMARK 3 SHRINKAGE RADIUS : 0.83 REMARK 3 K_SOL : 0.34 REMARK 3 B_SOL : 32.94 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.220 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.660 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 1.42120 REMARK 3 B22 (A**2) : 1.42120 REMARK 3 B33 (A**2) : -2.84250 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.007 2468 REMARK 3 ANGLE : 0.962 3325 REMARK 3 CHIRALITY : 0.067 347 REMARK 3 PLANARITY : 0.003 427 REMARK 3 DIHEDRAL : 13.310 917 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4E9U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-MAR-12. REMARK 100 THE DEPOSITION ID IS D_1000071350. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-OCT-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.4 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 21-ID-F REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20218 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 10.10 REMARK 200 R MERGE (I) : 0.06600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASES REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.16 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.47 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.75M POTASSIUM SODIUM TARTRATE, 1MM REMARK 280 BPH-954 (LIGAND) , PH 7.4, VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 60.52867 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 30.26433 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 30.26433 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 60.52867 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 HIS A 285 REMARK 465 ARG A 286 REMARK 465 ILE A 287 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OD2 ASP A 225 O HOH A 523 1.81 REMARK 500 OD2 ASP A 114 O HOH A 418 2.02 REMARK 500 O HOH A 460 O HOH A 524 2.07 REMARK 500 O HOH A 441 O HOH A 532 2.13 REMARK 500 NE2 GLN A 33 O HOH A 541 2.14 REMARK 500 O HOH A 546 O HOH A 554 2.18 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 468 O HOH A 485 2544 2.16 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 SER A 82 -109.00 -101.48 REMARK 500 ALA A 134 -42.90 -138.85 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 302 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 176 OD1 REMARK 620 2 HOH A 472 O 95.3 REMARK 620 3 HOH A 496 O 114.3 123.8 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE RWY A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4E9Z RELATED DB: PDB REMARK 900 RELATED ID: 4EA0 RELATED DB: PDB REMARK 900 RELATED ID: 4EA1 RELATED DB: PDB REMARK 900 RELATED ID: 4EA2 RELATED DB: PDB DBREF 4E9U A 1 287 UNP A9JQL9 CRTM_STAAU 1 287 SEQRES 1 A 287 MET THR MET MET ASP MET ASN PHE LYS TYR CYS HIS LYS SEQRES 2 A 287 ILE MET LYS LYS HIS SER LYS SER PHE SER TYR ALA PHE SEQRES 3 A 287 ASP LEU LEU PRO GLU ASP GLN ARG LYS ALA VAL TRP ALA SEQRES 4 A 287 ILE TYR ALA VAL CYS ARG LYS ILE ASP ASP SER ILE ASP SEQRES 5 A 287 VAL TYR GLY ASP ILE GLN PHE LEU ASN GLN ILE LYS GLU SEQRES 6 A 287 ASP ILE GLN SER ILE GLU LYS TYR PRO TYR GLU TYR HIS SEQRES 7 A 287 HIS PHE GLN SER ASP ARG ARG ILE MET MET ALA LEU GLN SEQRES 8 A 287 HIS VAL ALA GLN HIS LYS ASN ILE ALA PHE GLN SER PHE SEQRES 9 A 287 TYR ASN LEU ILE ASP THR VAL TYR LYS ASP GLN HIS PHE SEQRES 10 A 287 THR MET PHE GLU THR ASP ALA GLU LEU PHE GLY TYR CYS SEQRES 11 A 287 TYR GLY VAL ALA GLY THR VAL GLY GLU VAL LEU THR PRO SEQRES 12 A 287 ILE LEU SER ASP HIS GLU THR HIS GLN THR TYR ASP VAL SEQRES 13 A 287 ALA ARG ARG LEU GLY GLU SER LEU GLN LEU ILE ASN ILE SEQRES 14 A 287 LEU ARG ASP VAL GLY GLU ASP PHE GLU ASN GLU ARG ILE SEQRES 15 A 287 TYR PHE SER LYS GLN ARG LEU LYS GLN TYR GLU VAL ASP SEQRES 16 A 287 ILE ALA GLU VAL TYR GLN ASN GLY VAL ASN ASN HIS TYR SEQRES 17 A 287 ILE ASP LEU TRP GLU TYR TYR ALA ALA ILE ALA GLU LYS SEQRES 18 A 287 ASP PHE ARG ASP VAL MET ASP GLN ILE LYS VAL PHE SER SEQRES 19 A 287 ILE GLU ALA GLN PRO ILE ILE GLU LEU ALA ALA ARG ILE SEQRES 20 A 287 TYR ILE GLU ILE LEU ASP GLU VAL ARG GLN ALA ASN TYR SEQRES 21 A 287 THR LEU HIS GLU ARG VAL PHE VAL GLU LYS ARG LYS LYS SEQRES 22 A 287 ALA LYS LEU PHE HIS GLU ILE ASN SER LYS TYR HIS ARG SEQRES 23 A 287 ILE HET RWY A 301 19 HET MG A 302 1 HETNAM RWY 2-(4-PHENOXYPHENOXY)ETHYL THIOCYANATE HETNAM MG MAGNESIUM ION FORMUL 2 RWY C15 H13 N O2 S FORMUL 3 MG MG 2+ FORMUL 4 HOH *156(H2 O) HELIX 1 1 THR A 2 SER A 19 1 18 HELIX 2 2 SER A 19 ASP A 27 1 9 HELIX 3 3 PRO A 30 ASP A 49 1 20 HELIX 4 4 SER A 50 VAL A 53 5 4 HELIX 5 5 ILE A 57 TYR A 73 1 17 HELIX 6 6 ASP A 83 LYS A 97 1 15 HELIX 7 7 ALA A 100 GLN A 115 1 16 HELIX 8 8 THR A 122 ALA A 134 1 13 HELIX 9 9 ALA A 134 SER A 146 1 13 HELIX 10 10 THR A 150 ASP A 172 1 23 HELIX 11 11 ASP A 172 ASN A 179 1 8 HELIX 12 12 SER A 185 TYR A 192 1 8 HELIX 13 13 ASP A 195 GLY A 203 1 9 HELIX 14 14 ASN A 205 GLN A 229 1 25 HELIX 15 15 ILE A 230 PHE A 233 5 4 HELIX 16 16 ALA A 237 ALA A 258 1 22 HELIX 17 17 GLU A 269 SER A 282 1 14 LINK OD1 ASP A 176 MG MG A 302 1555 1555 2.78 LINK MG MG A 302 O HOH A 472 1555 1555 2.38 LINK MG MG A 302 O HOH A 496 1555 1555 2.82 SITE 1 AC1 9 PHE A 22 TYR A 41 ALA A 134 VAL A 137 SITE 2 AC1 9 GLY A 138 ALA A 157 GLY A 161 ASN A 168 SITE 3 AC1 9 TYR A 248 SITE 1 AC2 3 ASP A 176 HOH A 472 HOH A 496 CRYST1 80.440 80.440 90.793 90.00 90.00 120.00 P 32 2 1 6 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.012432 0.007177 0.000000 0.00000 SCALE2 0.000000 0.014355 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011014 0.00000